CVE-2025-20336
A vulnerability in the directory permissions of Cisco Desk Phone 9800 Series, Cisco IP Phone 7800 and 8800 Series, and Cisco Video Phone 8875 could allow an unauthenticated, remote attacker to access sensitive information on an affected device.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.39%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A vulnerability in the directory permissions of Cisco Desk Phone 9800 Series, Cisco IP Phone 7800 and 8800 Series, and Cisco Video Phone 8875 could allow an unauthenticated, remote attacker to access sensitive information on an affected device. This vulnerability exists because the product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. An attacker could exploit this vulnerability by sending a crafted packet to the IP address of a device that has Web Access enabled. A successful exploit could allow the attacker to access sensitive information from the device. Note: To exploit this vulnerability, Web Access must be enabled on the phone. Web Access is disabled by default.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.39% probability · 32th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- cisco/desk phone 9841 firmware · cisco/desk phone 9851 firmware · cisco/desk phone 9861 firmware · cisco/desk phone 9871 firmware · cisco/ip phone 8841 firmware · cisco/ip phone 7811 firmware · cisco/ip phone 7821 firmware · cisco/ip phone 7841 firmware · cisco/ip phone 7861 firmware · cisco/ip phone 8811 firmware · cisco/ip phone 8845 firmware · cisco/ip phone 8851 firmware · cisco/ip phone 8851nr firmware · cisco/ip phone 8861 firmware · cisco/ip phone 8865 firmware · cisco/video phone 8875 firmware · cisco/ip phone 8821 firmware
- Source
- psirt@cisco.com
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.